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    • 31. 发明申请
    • Color image forming apparatus
    • 彩色图像形成装置
    • US20050232648A1
    • 2005-10-20
    • US10992019
    • 2004-11-17
    • Kimio NishizawaYutaka MiyasakaNobuyasu TamuraKazutoshi Kobayashi
    • Kimio NishizawaYutaka MiyasakaNobuyasu TamuraKazutoshi Kobayashi
    • B41J2/44G03G15/00G03G15/01G03G15/16G03G21/14
    • G03G15/5058G03G2215/0119
    • A color image forming apparatus including: a plurality of developing devices for forming a black toner image and a color toner image; an image carrier for carrying toner images; a density detecting device for detecting densities of the black toner image and the color toner image each on the image carrier, the density detecting device having a light emitting element and a light sensitive element; and a controller for the density detecting device; wherein, when detecting a density of the black toner image, the controller controls a drive voltage of the light emitting element so that an amount of received light from a non-image area becomes a first predetermined value; and when detecting a density of the color toner image, the controller controls the drive voltage so that an amount of received light from a non-image area becomes a second predetermined value.
    • 一种彩色图像形成装置,包括:多个用于形成黑色调色剂图像和彩色调色剂图像的显影装置; 用于承载调色剂图像的图像载体; 密度检测装置,用于检测图像载体上的黑色调色剂图像和彩色调色剂图像的浓度,所述浓度检测装置具有发光元件和感光元件; 和密度检测装置的控制器; 其中,当检测到黑色调色剂图像的浓度时,控制器控制发光元件的驱动电压,使得来自非图像区域的接收光量成为第一预定值; 并且当检测到彩色调色剂图像的浓度时,控制器控制驱动电压,使得来自非图像区域的接收光量成为第二预定值。
    • 32. 发明授权
    • Ignition coil for use in internal combustion engine
    • 用于内燃机的点火线圈
    • US06237578B1
    • 2001-05-29
    • US09430303
    • 1999-10-29
    • Takanori SatooRyozo TakeuchiKazutoshi Kobayashi
    • Takanori SatooRyozo TakeuchiKazutoshi Kobayashi
    • F02P1100
    • H01F38/12H01F27/346H01F2038/122
    • An ignition coil comprises a center magnetic core, a secondary coil wound on a secondary coil bobbin which is arranged at an outer side of said center magnetic core, a primary coil wound on a primary coil bobbin which is arranged at an outer side of said secondary coil. At least one of said secondary coil bobbin and said primary coil bobbin is formed by a, material which contains sulfur in a main chain of an aromatic class. The ignition coil has a superior anti-electric treeing. A coil component of the secondary coil and the primary coil of the ignition coil is arranged and accommodated in a coil case, an epoxy resin filling up at least melting silica is potted and is hardened. A development of the electric treeing can be restrained and the ignition coil having a superior endurance performance can be provided.
    • 点火线圈包括中心磁芯,卷绕在次级线圈架上的次级线圈,其布置在所述中心磁芯的外侧,初级线圈缠绕在初级线圈架上,初级线圈架布置在所述次级线圈的外侧 线圈 所述次级线圈筒管和所述初级线圈筒管中的至少一个由在芳香族主链中含有硫的材料形成。 点火线圈具有优良的抗电树枝。 次级线圈的线圈部件和点火线圈的初级线圈被布置并容纳在线圈壳中,填充至少熔融二氧化硅的环氧树脂被封装并且被硬化。 可以抑制电树枝的发展,并且可以提供具有优异耐久性能的点火线圈。
    • 39. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20080240793A1
    • 2008-10-02
    • US12015106
    • 2008-01-16
    • Kazutoshi KobayashiYutaka MiyasakaNobuyasu Tamura
    • Kazutoshi KobayashiYutaka MiyasakaNobuyasu Tamura
    • G03G15/09
    • G03G15/0921G03G2215/0634
    • An image forming apparatus having an image carrier for forming an electrostatic latent image and a developing unit for developing the electrostatic latent image with a two-component developing agent, the developing unit includes: a developing agent carrier for developing the electrostatic latent image to form a visible image, having inside thereof a development main magnetic pole for forming a bristle of a magnetic brush; and a plurality of magnetic poles for conveying the developing agent, wherein the developing unit performs a counter type contact developing method, and wherein, the development area is formed so that, a contact width of the bristle of the magnetic brush is 70% or less with respect to a development width, and a center position of the contact width is positioned on an upstream side with respect to a center position of the development width in a rotation direction of said image carrier.
    • 一种具有用于形成静电潜像的图像载体和用于使用双组分显影剂显影静电潜像的显影单元的图像形成装置,所述显影单元包括:用于显影静电潜像以形成静电潜像的显影剂载体 可见图像,其内部具有用于形成磁刷的刷毛的显影主磁极; 以及用于输送显影剂的多个磁极,其中显影单元执行反式接触显影方法,并且其中形成显影区域使得磁刷的刷毛的接触宽度为70%以下 相对于显影宽度,并且接触宽度的中心位置位于相对于所述图像载体的旋转方向的显影宽度的中心位置的上游侧。
    • 40. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US07289754B2
    • 2007-10-30
    • US11182785
    • 2005-07-18
    • Yutaka MiyasakaNobuyasu TamuraKazutoshi Kobayashi
    • Yutaka MiyasakaNobuyasu TamuraKazutoshi Kobayashi
    • G03G15/09
    • G03G15/0921
    • An image forming apparatus incorporating: an image forming body; and a developing unit having a developer carrier, a magnetic field generator, a developer restriction member, a first conveyer, and a second conveyer, wherein the magnetic field generator has: a main magnetic pole; pickup magnetic pole; and a strip-off magnetic pole, wherein the developing unit satisfies following conditions: (a) the second conveyer is a screw conveyer having an outer diameter within 24 mm-30 mm, rotating speed of 300-500 rpm, (b) the pickup magnetic pole is arranged at an angle of 25°-60° downstream with a line connecting a rotation centers of the developer carrier and the second conveyer, (c) the strip-off magnetic pole is arranged at 60°-80° upward with the line,(d) a transporting capability of the first conveyer is larger than that of the second conveyer.
    • 一种图像形成装置,包括:成像体; 以及具有显影剂载体,磁场发生器,显影剂限制构件,第一输送器和第二输送器的显影单元,其中所述磁场发生器具有:主磁极; 拾磁极; 和剥离磁极,其中显影单元满足以下条件:(a)第二输送机是外径在24mm-30mm,转速为300-500rpm的螺旋输送机,(b)拾取器 磁极以下方的25°-60°的角度布置有连接显影剂载体和第二输送机的旋转中心的线,(c)剥离磁极以60°-80°向上设置, (d)第一输送机的输送能力大于第二输送机的输送能力。